海南大學(xué)java復(fù)習(xí)題

《java程序設(shè)計(jì)》復(fù)習(xí)題(一)A)importsos.*;B)packagesos.*;C)sosimport;D)sospackage;21.下面是用戶程序?qū)pplet類(lèi)中方法paint()的重新定義.(publicdrawString)C)inti=Integer.MAX_VALUE;D)staticinti=100;A)inta;b;B)floata,b1=1.23f;A)int_a=123;B)longj=12345678900L;C)bytei=200;D)doubley;A)staticfinaldoublei;B)abstractfinalinti=8;C)finaldoublei=3.14159;D)floati=1.2f;A)float$_*5=3.4F;B)byteb1=15678;C)doublea=Double.MAX_VALUE;D)int_abc_=3721L;(longvar=10000000000L;或longvar=(long)1e10;)(float32位,double64位)《java程序設(shè)計(jì)》復(fù)習(xí)題(二)A)a+1==2;B)a+=a*6;C)a=8.8f;D)inta=8;A)a>=4==b3;B)t=!false;C)t=(true|false);D)t=(2==3)？A)m=n>=5;B)m=k%c=h+y;C)j=t+%100;D)j=y>2=x+3;A)i==k&j+k>=mB)i+kC)m++D)m=i+jA)a!=b&c%d=c+dA)a+1==2;B)a+=1;C)a=8.8f;D)a=newint(8);A)a==1;B)++i;C)a=a+1=5;D)!(++a!=b--);A)a!=4||b==1B)'a'%3C)'a'=1/2D)'A'+32booleanb1=true,b2=true,b3;b3=!b1b1:!b2;A)0B)1C)trueD)falseA)j=i;B)j=(long)i;C)i=(int)j;D)i=j;A)b=a!=7;B)a=7+b+c=9;C)i=12.3*%4;D)a=a+7=c+b;intt1=9,t2=11,t3=8;intt4,t5;t4=t1>t2t1:t2+t1;t5=t4>t3t4:t3;intx=6,y=8;booleanb;b=x>y&&++x==--y;A)true,6,8B)false,7,7C)true,7,7D)false,6,8intx=2,y=4;booleanm;m=++x>y--;A)true,2,4B)false,3,3C)true,3,3D)false,2,4inta=13;a%=a/5;分別是______和______.(max=x>yx:y;min=xy),b2=(++x==--y);g.drawString(《java程序設(shè)計(jì)》復(fù)習(xí)題(三)inta=10,b=3,m=5;if(a==b)m+=a;elsem=++a*m;(!b1),25,65);inti=4,j=5,k=9,m=5;if(i>j||minta=2,b=4,x=5;if(a<--b)x*=a;inta=2,b=4;if(a<--b)a*=a;inti=9,j=8,m=10,n=9;inta=3,b=4,x=5;if(++aA)5B)3C)4D)6charch1='A',ch2='W';if(ch1+2j||minti=10,j=18,k=30;switch(j-i)default:k/=j;A)switch(a+b);{......}B)switch(a+b*3.0){......}charch='8';intr=10;switch(ch+1)case'7':r=r+3;case'8':r=r+5;case'9':r=r+6;break;default:r=r+8;A)switch(x+y){......}B)switch(ch+1){......}intx=6,y=10,k=5;default:k=x*y-x;charch='A';intr=6;switch(ch+5)case'A':r=r+3;case'B':r=r+5;case'C':r-=6;break;default:r/=2;if(ch1=='a'){if(ch2=='b')么(end)(ch1='a'end)(ch1='a',ch2='b'end)if(x<5)if(y4);x++);intj=1;for(inti=5;i>0;i-=2)j*=i;for(intx=0;(x==0)&(x0;i-=2)j*=2;for(intx=0,y=0;(y!=0)&&(x==0);i--)j+=i;for(inti=0;true;i++);for(inti=0,j=1;j<5;j+=3)i=i+j;intj=8,k=15;for(inti=2;i!=j;i++){j-=2;k++;}intm=3,n=6,k=0;while((m++)<(--n))++k;ints=1,i=1;while(i<=4){s*=i;i++;}intm=3,n=6,k=0;while(m4)--j;intj=8,i=6;while(i>4)i-=2;intj=9,i=6;while(i-->3)--j;intj=3,i=2;while(--i!=i/j)j=j+2;intx=5,y=20;intm=8;do{++m;}while(m1);inti=10;do{i/=2;}while(i-->1);inti=10;do{i-=2;}while(i>6);inti=16;do{i/=2;}while(i>3);intk=0;do{++k;}while(k<1);intx=5,y=20;do{y-=x;x++;}while(++x<--y);publicstaticvoidmain(Stringargs[])charc='a';或(c++)+'')for(inti=1;i<=26;i++)publicstaticvoidmain(Stringargs[])for(inti=1;i<=10;i++)importjava.io.*;publicstaticvoidmain(String[]args)intj=1;《java程序設(shè)計(jì)》復(fù)習(xí)題(四)1.結(jié)構(gòu)化程序設(shè)計(jì)的三種基本流程控制結(jié)構(gòu)C)switch語(yǔ)句D)do-while語(yǔ)句(0continue)publicstaticvoidmain(Stringargs[])Label1:for(inti=2;i<100;i++)publicclassContinueTestpublicstaticvoidmain(Stringargs[])charc='i';label1:for(intn=6;n<11;n++)if(n==8)breaklabel1;importjava.awt.Graphics;importjava.applet.Applet;publicclassBreakTestextendsAppletpublicvoidpaint(Graphicsg)intcount,xPos=25;for(count=1;count<=10;count++)if(count==8)break;整.(booleantrue){if(a%2==0)returnfalse;(implementsi)importjava.awt.*;importjava.applet.*;importjava.awt.event.*;publicclassApplet1extendsApplet_______ActionListenerpublicvoidinit()t1=newTextField(12);t1.addActionListener(this);publicvoidpaint(Graphicsg)publicvoidactionPerformed(ActionEvente)i=Integer.parseInt(t1.getText());longsum(longn){longs=0;for(longk=1;k<=n;k++)s+=k;importjava.awt.*;importjava.applet.Applet;importjava.awt.event.*;Applet1AppletimplementsActionListenerinti=0;publicvoidinit()t1=newTextField(10);t1.addActionListener(this);publicvoidpaint(Graphicsg)publicvoidactionPerformed(ActionEvente)2)ActionListener是類(lèi)還是接口程序中哪個(gè)方法是《java程序設(shè)計(jì)》復(fù)習(xí)題(五)A)publicgetSort(floatx)B)intgetSort(inty)C)doublegetSort(intx,inty)D)voidget(intx,inty)A)publicfloatsort(floatx)B)intsort(inty)C)doublesort(intx,inty)D)voidsort(doubley)A)System.out.println(a[10]);B)System.out.println(a[9]);C)System.out.println(a[a.length]);D)System.out.println(a(8));A)int[]a1,a2;B)inta0[]={11,2,30,84,5};C)double[]d=newdouble[8];]=newC)a的值為3D)對(duì)數(shù)組元素的引用a[a.length-1]是合法的A)intArray[]a1,a2;inta3[]={1,2,3,4,5};B)int[]a1,a2;inta3[]={1,2,3,4,5};C)inta1,a2[];inta3={1,2,3,4,5};D)int[]a1,a2;inta3=(1,2,3,4,5);A)i=i+2B)a[0]=7;C)i++---j;D)a(0)=66;A)x[5-3]B)x[k]C)x[k+5]D)x[0]8.設(shè)有定義int[]a=newA)a0,a1,a2,a3B)a[0],a[1],a[2],a[3]C)a[1],a[2],a[2],a[4]D)a[0],a[1],a[2],a[3],a[4]9.設(shè)有整型數(shù)組的定義:inta[]=newint[8];,則a.length的值為13.定義一個(gè)整型數(shù)組y,它有5個(gè)元素分別是1,2,3,4,5.用一個(gè)語(yǔ)句實(shí)現(xiàn)對(duì)數(shù)組y的聲明,創(chuàng)建和賦值:__________________;.(inty[]={1,2,3,4,5};)importjava.awt.Graphics;importjava.applet.Applet;publicclassSumArrayextendsAppletinta[]={1,3,5,7,9,10};inttotal;publicvoidinit()total=0;publicvoidpaint(Graphicsg)importjava.awt.Graphics;importjava.applet.Applet;publicclassSumArrayextendsAppletfloatsum=0.0f;publicvoidinit(){for(intj=0;j<a.length;j++)a[j]=j+1;for(inti=0;i<a.length;i++)sum+=a[i];publicvoidpaint(Graphicsg)序填空.(extendsi+=2)importjava.awt.Graphics;importjava.applet.Applet;publicvoidpaint(Graphicsg)inta[]={1,3,5,7,9,10};inttotal=0;total+=a[i];空.(Graphics;(float)a.length)importjava.awt.Graphics;importjava.applet.Applet;publicclassSumOfArrayextendsAppletinta[]={1,3,5,7,9,10};inttotal=0;floatave;for(inti=0;i<a.length;i++)total+=a[i];importjava.awt.*;importjava.applet.*;publicclassTest51extendsAppletfloat[]x={1.2f,3.4f,5.6f,7.8f};publicvoidpaint(Graphicsg)for(inti=0;iyx:y;max_value=temp1>ztemp1:z;staticintgeta()publicstaticvoidmain(Stringargs[]){System.out.print(str1);System.out.println(str2);}《java程序設(shè)計(jì)》復(fù)習(xí)題(六)A)classAextendsBB)classBimplementsAC)classAimplementsBD)classBextendsAimportjavaawt.*;importjavaapplet.*;publicclassmyprogramextendsApplet//定義小程序的主類(lèi)publicclassYouwriteYouwrite(intx)publicStringtoString(){returnstr1+str2;}}publicclassBextendsApublicStringtoString(){returnsuper.str1+str1;}2)類(lèi)A和類(lèi)B都定義了str1屬性和方法toString(),這種現(xiàn)象分doublewage;staticintNo=0;Employee(Stringa1,inta2,doublea3)name=a1;age=a2;wage=a3;No++;1)/doc/0d4248744.html,,e2.age,e2.wage的importjava.awt.*;importjava.applet.*;publicclassJavaappletextendsAppletpublicvoidinit(){b=newB('f',87.6f,69.1f);}publicvoidpaint(Graphicsg)b.print(g);staticintn=100;A(){n++;}A(charc){this();ch=c;}voidprint(Graphicsg)B(floatr1,floatr2){s1=r1;s2=r2;}B(charc,floatr1,floatr2){super(c);s1=r1;s2=r2;}voidprint(Graphicsg)super.print(g);publicclassInheritTest1publicstaticvoidmain(String[]args){aa=newA();bb=newB();inta=1;doubled=2.0;voidshow()floata=3.0f;intb=4;voidshow()publicstaticvoidmain(Stringargs[])System.out.println(a1.s);System.out.println(a2.s);System.out.println(b1.s);System.out.println(b2.s);intx=888;pu